Band atrophy of the optic nerve. The histology of temporal hemianopsia
R. Unsold and W. F. Hoyt
Cross sections of the orbital portion of the optic nerve, the decussating
fibers of which underwent atrophy, have a distinctive histologic pattern.
Distally, from the eyeball to the midportion of the optic nerve, this
pattern of atrophy consists of a broad-based nasal and a narrow-based
temporal sector that form a horizontal band. Proximally, near the optic
canal, the pattern changes. The atrophic bundles occupy the nasal and
central portions of the optic nerve only.
